diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index f004db06dee9b7ac4f5c3324728f9e3dcb14304c..ccf4c8cfbb52ed9c288631697268ecb5f5f80099 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -839,6 +839,10 @@ static int tc_main_link_enable(struct tc_data *tc) dev_dbg(tc->dev, "link enable\n"); + tc_read(DP0CTL, &value); + if (WARN_ON(value & DP_EN)) + tc_write(DP0CTL, 0); + tc_write(DP0_SRCCTRL, tc_srcctrl(tc)); /* SSCG and BW27 on DP1 must be set to the same as on DP0 */ tc_write(DP1_SRCCTRL,